Grain-drill



(No Model.) 2 Sheets-Sheet 1.

W. H. DAVIS. GRAIN DRILL.

No. 477,520. PatentedJune 21, 1892,

ATTORNEYS 2 Sheets-Sheet 2.

(No Model.)

W. H. DAVIS.

GRAIN DRILL. I Patented June 21, 1892.

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S 8 8 E N U W UNIT D STATES PATENT OFFICE.

\VILLIAH H. DAVIS, OF FOND DU LAO, \VISCONSIN.

GRAIN-DRILL.

SPECIFICATION forming part of Letters Patent No. 477,520, dated June '21, 1892. Application filed December 9, 1891. Serial No. 414.524. (No model.)

To all whom, it may concern:

Be it known that I, \VILLIAM H. DAVIS, of

Fond du Lac, in the county of Fond du Lac and State of \Visconsin, have invented a new and useful Improvement in Grain-Drills, of which the following is a specification.

This invention is an improvement in graindrills, and especially in that class known as shoe-drills; and it consists in certain novel constructions and combinations of parts, as will be hereinafter described, and pointed out in the claims.

In the drawings, Figure 1 is a side elevation of my grain-drill. Fig. 2 is a detail perspective view showing the manner of supporting the rear end of the fluke or runner and of connecting the spring-presser therewith. Fig. 3 is a rear elevation of part of the machine. Figs. 4. and 5 are respectively side and top plan views of the fluke or runner, its bracebars, and bearing-block. Fig. 0 is a detail front View of the bearing-block, and Figs. 7 and S are detail views.

The machine, as shown, has the front or fluke frame A and the the rear 01' Wheel frame B, such frames A and B being pivotally jointed at O. The wheels D in frame Bare provided and arranged to run one in rear of each fluke. On the shaft or axle d of wheels D, I journal loosely a sprocket-wheel E, geared by belt or chain F with the wheel G of the seed-box shaft g. The wheel E has a clutch-section c, and may be clutched at will to the shaft d by means of the clutch-section H, levers I J, and connecting-rod K, as will be readily understood from Figs. 1 and 3, The flukes L are pivoted at their front ends at Z in the block M, and are provided at their rear ends with the upwardly-extending seed-tube N. The brace-rods O extend between the upper end of the seed-tube and the forward upturned ends of the fluke, being connected at their rear ends by bolt 0 to the lugs O on the front of the seed-tube and at their front ends to the block M. These blocks M, of which I use one for each fluke, are formed with the top or head-plate m, which is secured to the front beam of the fluke-frame, and with four depending lugs or cars m, forming the three seats or spaces m for the reception of the front end of the fluke and the front ends of the braces O. The front end of the fluke fits in the central space or slot m and the front ends of the braces O, fitting in the spaces or slots m on opposite sides of the fluke, the fluke and braces being secured at their front ends to the block M by the bolt M on which they pivot, so that the fluke can rise and fall at its rear end. This bearing-block M forms a simple and convenient means of securing the pivoting of the fluke. At their rear ends the flukes L are provided with lugs L, projected rearwardly from the ends of the seed tubes N. These lugs L rest upon a cross-bar P, which extends from side to side of the ma chine and is held at its ends in slotted bars Q, which are secured at their upper ends to the fluke-frame and depend therefrom, as shown in Fig. 1. The bar P projects at its ends through the slots q of bars Q and is held at its ends by keys 1).

On the front sides of the seed-tubes N, near their upper ends, I provide lugs 07., to which are secured the lower ends of rods R, which extend upward and project at their upper ends through the top bar of a frame S,'arranged in front of the seed-box. On the rods R, below the said top bar, I fit rings or wash- 1 ers 25, and springs T are placed on the rods R to bear between the washers t and the lower ends of the rods and so tend to press the finkes into the ground. The frame S comprises side uprights S, mounted on the flukeframe, and the top cross-bar consisting of front and rear sections S S between which the upper ends of the rods R project, such rods being held from lateral movement by pins Si which pins also serve to brace the sections S together.

The seat-bar U is supported from the wheelframe by standards U, pivoted at their lower ends to the wheel-frame and at their upper ends to the said seat-bar, and such bar U is supported from the fluke-frame by means of the bars V, which are pivoted at their forward ends to the fluke-frame and at their rear ends to the standards U, near the upper ends thereof. Bars V extend between the bars V and the seat-bar U.

The lever W is pivotally supported at its lower end at w to the wheel-frame, is connected by a rod WV with the rear end of the duke frame, and is provided with a pawl or other suitable means for engaging the rack-arch ICO WV by which the lever may be held in any suitable adjustment. In operation this lever may be arranged, as shown in Fig. 1, to relieve the fluke-frameof the weight of the driver, or it may be thrown forward to throw the pivot-joint of frames A and B down and to cause the drivers weight to be exerted to hold such frames down at their pivotal connection, the construction being simple and,

easily operated.

The lugs L gage the depth at which the shoes L run or penetrate the soil to form furrows by preventing them from dropping bed to the framing and provided with slots or low the bar P, and as said bar is supporte in slotted bars Q, and as the bars Q are connected and adjusted with the fluke-frame, the

depth to which the flukes may run can be ad-' fitted inthe slots m on opposite sides of the justed as desired.

Having thus described my invention, what J to pivotally secure the front end of the duke proper and its braces to the block M, all sub- 1 claim as new is 1. In a grain drill, substantially as described, the combination of the front flukeframe A, the rear or wheel frame B, an upright, as U, a bar V, connecting the said upright U with the front frame, the lever W, pivoted at its lower end, and the bar W extended below the bar V and pivoted at its; rear end to the lever WV and at its forward j end to the fluke-frame, substantially as set forth.

2. In a grain-drill, the combination of the: front frame, the rear frame pivotally jointed to the front frame, the seat-bar, the uprights or bars U, pivoted at their lower ends to the rear frame and at their upper ends to the seat-bar, the bars V, pivoted at their rear ends to the uprights U and at their forward ends to the front frame, the bars V, pivoted at one end to the bars V and at their opposite or upper ends to the seat-bar, the rack W supported on the bars V, the lever WV, pivoted at its lower end to the rear frame, and the bar W, connecting said lever with the front frame, substantially as and for the purrear ends with rearwardly-projected lugs L, a bar P, arranged below the said lugs L, and a support for the said bar P, substantially as set forth.

4. The combination, in a grain-drill, of the framing, the bars orframes Q, secured thereto and having slots q, the bar P, fitted at its ends in the slots q, and the fiukes pivoted at their front ends and provided at their rear ends with lugs L to rest upon the bar P, all substantially as and for the purposes set forth.

5. The combination, substantially as described, of the framing, the blocks M, secured spaces m and the fluke having its front end fitted in the central slot m and provided with the side braces 0, having their front ends front end of the fluke, and the bolt by which stantially as and for the purposes set forth.

6. The improvement in grain-drills herein described, consisting of the main frame, the seed-box, the fiukes having the seed-tubes at their rear ends, the presser-rods R, connected at their lower ends with the said seed-tubes, and a guide-frame for the upper ends of the said rods, such frame being formed with the front and rear sections S S between which the rods R are passed, and pins S arranged on opposite sides of such rods R and extended between the sections S substantially as and for the purposes set forth.

7. The improvement in grain-drills, substantially as herein described and shown, comprising the blocks M, having spaces m m m", the fiukes having side braces O and pivoted at their front ends to the blocks M and provided at their rear ends with lugs L, the frames or bars Q, having slots q, the bar P, fitted at its ends in slots (1 and arranged below the lugs L, and the presser-rods, all substantially as and for the purposes set forth.

WILLIAM H. DAVIS.

Witnesses:

LOUIS V. BENNETT, Gno. I-I, CLARK. 

